Stiffness requirements for transverse stiffeners of compression panels

Byung H. Choi, Young Jong Kang, Chai H. Yoo

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This paper presents a more accurate calculation of the minimum stiffness required for transverse stiffeners of compression panels. As longitudinal stiffeners are essentially compression members, transverse stiffeners are required to control the effective length. Both the longitudinal stiffener and transverse stiffener subdivide the compression panel in a grid pattern so the relatively thin plate can carry the induced compressive load in the most efficient manner. However, the provisions for the required rigidity of transverse stiffeners in the AASHTO specifications are inconsistent. Here, the parameters that govern the behavior of the transverse stiffeners are identified theoretically using the column buckling approximation. In order to calibrate and quantify the analytical equations developed, elastic buckling analyses were performed on more than 350 finite element models. The numerically collected data were reduced using a series of regression analyses for simple equations to determine the required rigidity for the transverse stiffeners. Incremental nonlinear analyses were performed to validate the reliability of the regression equations developed. Several design examples are also given to demonstrate the broad applicability of the proposed equations.

Original languageEnglish
Pages (from-to)2087-2096
Number of pages10
JournalEngineering Structures
Volume29
Issue number9
DOIs
Publication statusPublished - 2007 Sep 1

Fingerprint

Rigidity
Buckling
Stiffness
Specifications

Keywords

  • Box girders
  • Buckling
  • Finite element method
  • Flanges
  • Steel plates
  • Stiffening

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

Stiffness requirements for transverse stiffeners of compression panels. / Choi, Byung H.; Kang, Young Jong; Yoo, Chai H.

In: Engineering Structures, Vol. 29, No. 9, 01.09.2007, p. 2087-2096.

Research output: Contribution to journalArticle

Choi, Byung H. ; Kang, Young Jong ; Yoo, Chai H. / Stiffness requirements for transverse stiffeners of compression panels. In: Engineering Structures. 2007 ; Vol. 29, No. 9. pp. 2087-2096.
@article{b158e7019b4b4929a3b134648b3f686a,
title = "Stiffness requirements for transverse stiffeners of compression panels",
abstract = "This paper presents a more accurate calculation of the minimum stiffness required for transverse stiffeners of compression panels. As longitudinal stiffeners are essentially compression members, transverse stiffeners are required to control the effective length. Both the longitudinal stiffener and transverse stiffener subdivide the compression panel in a grid pattern so the relatively thin plate can carry the induced compressive load in the most efficient manner. However, the provisions for the required rigidity of transverse stiffeners in the AASHTO specifications are inconsistent. Here, the parameters that govern the behavior of the transverse stiffeners are identified theoretically using the column buckling approximation. In order to calibrate and quantify the analytical equations developed, elastic buckling analyses were performed on more than 350 finite element models. The numerically collected data were reduced using a series of regression analyses for simple equations to determine the required rigidity for the transverse stiffeners. Incremental nonlinear analyses were performed to validate the reliability of the regression equations developed. Several design examples are also given to demonstrate the broad applicability of the proposed equations.",
keywords = "Box girders, Buckling, Finite element method, Flanges, Steel plates, Stiffening",
author = "Choi, {Byung H.} and Kang, {Young Jong} and Yoo, {Chai H.}",
year = "2007",
month = "9",
day = "1",
doi = "10.1016/j.engstruct.2006.11.002",
language = "English",
volume = "29",
pages = "2087--2096",
journal = "Engineering Structures",
issn = "0141-0296",
publisher = "Elsevier BV",
number = "9",

}

TY - JOUR

T1 - Stiffness requirements for transverse stiffeners of compression panels

AU - Choi, Byung H.

AU - Kang, Young Jong

AU - Yoo, Chai H.

PY - 2007/9/1

Y1 - 2007/9/1

N2 - This paper presents a more accurate calculation of the minimum stiffness required for transverse stiffeners of compression panels. As longitudinal stiffeners are essentially compression members, transverse stiffeners are required to control the effective length. Both the longitudinal stiffener and transverse stiffener subdivide the compression panel in a grid pattern so the relatively thin plate can carry the induced compressive load in the most efficient manner. However, the provisions for the required rigidity of transverse stiffeners in the AASHTO specifications are inconsistent. Here, the parameters that govern the behavior of the transverse stiffeners are identified theoretically using the column buckling approximation. In order to calibrate and quantify the analytical equations developed, elastic buckling analyses were performed on more than 350 finite element models. The numerically collected data were reduced using a series of regression analyses for simple equations to determine the required rigidity for the transverse stiffeners. Incremental nonlinear analyses were performed to validate the reliability of the regression equations developed. Several design examples are also given to demonstrate the broad applicability of the proposed equations.

AB - This paper presents a more accurate calculation of the minimum stiffness required for transverse stiffeners of compression panels. As longitudinal stiffeners are essentially compression members, transverse stiffeners are required to control the effective length. Both the longitudinal stiffener and transverse stiffener subdivide the compression panel in a grid pattern so the relatively thin plate can carry the induced compressive load in the most efficient manner. However, the provisions for the required rigidity of transverse stiffeners in the AASHTO specifications are inconsistent. Here, the parameters that govern the behavior of the transverse stiffeners are identified theoretically using the column buckling approximation. In order to calibrate and quantify the analytical equations developed, elastic buckling analyses were performed on more than 350 finite element models. The numerically collected data were reduced using a series of regression analyses for simple equations to determine the required rigidity for the transverse stiffeners. Incremental nonlinear analyses were performed to validate the reliability of the regression equations developed. Several design examples are also given to demonstrate the broad applicability of the proposed equations.

KW - Box girders

KW - Buckling

KW - Finite element method

KW - Flanges

KW - Steel plates

KW - Stiffening

UR - http://www.scopus.com/inward/record.url?scp=34547615163&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547615163&partnerID=8YFLogxK

U2 - 10.1016/j.engstruct.2006.11.002

DO - 10.1016/j.engstruct.2006.11.002

M3 - Article

AN - SCOPUS:34547615163

VL - 29

SP - 2087

EP - 2096

JO - Engineering Structures

JF - Engineering Structures

SN - 0141-0296

IS - 9

ER -